Pump construction.



H. DE HUFF. PUMP CONSTRUCTION. APPLIOATIOK Hum an 17,1913.

Patented Aug. 18, 1914.

4 SHEETS SHEBT 1v a mm. 1

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0 A. u i 1 H. DE HUPF.

PUMP CONSTRUCTION.

APPLICATION TILED MAY 17,1913.

Patented Aug. 18, 1914.

4 SHEETS-SHEET 2,

H. DE HUFF. PUMP CONSTRUCTION. APPLICATION FILED MAY17, 191s.

Patented Aug. 18, 1914.

4 SHBETSSHEET 3 H. DE HUFF. PUMP CONSTRUCTION. AIYLIOATION rum) MAY17.1913.

Patented Aug. 18, 19%

4 SHEETB'BHBBT 4,

UNITED STATES PATENT OFFICE.

HENRY DE HUFF, 0F CYNWYD. PENNSYLVANIA, ASSIGNOR TO DOLIER CENTRIFUGALPUMP AND MACHINE COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TIONOF PENNSYLVANIA.

PUMP CONSTRUCTION.

Specification of Letters Patent.

Application filed May 17, 1913.

T '0 all whom it may concern Be it known that I. HENRY Dr: Hifrr, acitizen of the United States, residing in (lynwyd, in the county ofMontgomery and State of Pennsylvania, have invented certain new anduseful Improvements in Pump Construction, of which the following 18 aspecification.

My invention relates to the constructmn of a centrifugal pump and moreparticularly to the construction of such a. pump which is of unusualsize as when required to lift or move extremely large quantities ofwater or liquid.

My invent-ion resides in a centrlfugal pump in which one or more of thestationary parts, such as the pump case or discharge casing, suctionheads. etc. are made of plain concrete or reinforced concrete.

My invention resides in the features of construction hereinafterdescribed and claimed.

For an illustration of: some of many forms my invention may takereference is tobe had to the accompanying drawings, in which:

Figure 1 is a vertical sectional view, some parts in elevation, of adouble suction pump embodying my invention. Fig. 1 IS a. fragmentaryview on a. larger scale of a part of the section of F ig. 1. some partsshown in elevation. Fig. 2 an end clevational view of the pump shown inFig. 1. partially in r-ection, parts broken away to show internalconstruction. Fig. 3 is a side clcvational :iew of a. single suctionpump embodying -==y invention, some parts broken away and mine shown insection, the suction hcad in his case being in a single piece concreteonstruction. Fig. 3 is a scctiomii .lcw of part of the constructionillustrated in Figs.

and 3, some parts in elevation. Fig. 3 is a cross sectional view of apart shown in big. 3. Fig. 4: a side elcva'tional view.

an is brokcn away and parts in section. of a a suction heads castseparately and divided along a horizontal plane. Fig. 6 is a sideelevational view, parts broken away and parts shown in section, of adouble suction pump in which the suction heads are of reinforcedconcrete cast integral with the pump or discharge casing, the suctionhead and easing being divided along a horizontal plane. Fig. 7 IS avertical sectional view, some parts in elevation, of a. vertical singlesuction pump. Fig. 7 is a sectional view, on larger scale, of aconstruction similar to that shown in Fig. 3. Fig. 8 is a. sideelevational view, parts broken away and parts shown in section, showinga pump case or discharge casing in a single piece with a suction headdivided along a horizontal lane,

the suction head parts made of rein. orced concrete.

Referring to Figs. 1, l and 2, S represents a shaft having a suitablebearing as b supported upon any suitable part such as a pump base orseparate foundation, it being understood that the shaft S is driven bybelt. direct connection to motor, or by any other suitable means forrotating at the desired speed the runner or impeller I secured upon theshaft S. The impeller I has a suction opening s at each end. the outerperiphery or discharge point of the impe ler being, indicated at J. Theliquid or Water disharged by the impeller pascs into the pump case ordischarge casing D having the final discharge orifice D indicated inFig. 2, the casing I being her shown as of involute form. This dischargecasing D is made of i iYHltii, man nt or other suitable material whicht-nv he nulldcd or worked into the form dc izwl and which then takes aset and becomes rigid. in the case here illustrated lhc concrete isreinfor ed. At each side of the discharge casing and at its portion'ncxt to the impeller is the annular ring R, here shown of channel or Usection. such rings being made preferably of cast iron, and preferably,circumfercntially continuous. tliouggjh they may be circumferentiallysegmental. At suitable distance; circumferentially of each ring: R maybe provided a transversely extending bar or member a. A transverselyextending reinforcing rod r of s sltsohc-cl in, one end to one mli'l atifs other end to the bar ring R, #his attachment #0 the by any suitableconslruoiion, fl, at each end of the bar r. It fist-nod that, fihosoreinforcing exit nroun-l the cirriinifrronoo .u l), and ohnngo in lengthand tho, cross section necessary for And ostcnding rircuni- I .cli g,lorcnii siu' tho nun V rruls w; it. being: nnwusto d Lion Lhc ro ls ando are rompliialcly ililll;((.l*-iii iihin tho concrcls fOllnlf-" M15111"l.) for rcmforcm our )oses. H i s E lho (Ill'l'i-Eililfll lltllliiyMir-riding rods 0 may ho flSlQlilll all. one end to She finn o on thecase ond plateat tho disohm'go orifice I l' ig'. 9, any suitable conduitfor conducting tho discharged liquid or Water being boiled or otherwisesecured to the flange ring a. f' pucing or separator iuombcrs {i may bedisposed between two rings R, suitable bolts drawing tho two rings Rtoward each other against the members y. 01' these men'ibers 9 may beoust integral with and thus join the rings R. Ami those members 9 may boso shnpcd and positioned as to nonstituto guide vanes, il'. boingunderstood Lllill. the runes or niembrr v g recur at suitable pointsaround the discharge orifice of tho impeller I. The lower portion of theowing I) may be not in or cast. integral with s inundation block E whichmay also be of w uzrobo, this member I? supporting the cuslL'i l) andattached parts. Secured by bolts j lo the rings R are the two suctionheads ll hers shown as of metal. such as cast iron.

l" h sin-{ion hood is shown us having tho iluii or rib extending undera. ring R and on .i hind further provided with the :cpncil portions mwith which the impeller similarly sftoppcd, has a. running fit. And mohsuction hood H. hus a gland or smiling hon n making a running Watertight fit; with the shaft S.

In Fig. l the concrete of the casing D is represontod at C.

In F ig. 3 is shown a single suction pump in which the casing D is ofsubstantially the oonstmction described in connection with Mg". 1. Inthis case howcvcr the suction hoad H is made in one piece of reinforcedoonorote, having longitudinally extending reinforcing rods 0 and thecircumferential rods 7;. Atthe inner and of the suction head H is thehood q, preferably of cast iron, held by bolts j to the ring R andhaving the stopped running fit on with the impcllor I, it beingunderstood that the memher 1 is cast in the (oncrebe of the head H. Atthe other end of the impeller is a cast iron head H held by bolts j tothe left, hand 'ringr ll, tho shaft 53 fffflilu D l-hroinh tho shilling;box or gland n in rho hind ll".

In Fig. 3* is shown 11hr constriu oii of i-hr rings ll and moilc oi"ultuolxnu-u? o l"! l l'oi inir rods 7', ch12. as hown in Vi 1, nullliving of construction suitable. o wither l 1 or I") or othors. As shownin Fig. 3* tho member 9 is of n si-vi'ion su lnblr for y rating as igulch; \Illlfl? ii." prwvioosl dcscribed,

In Fin. 4 the pump or ilis mrgo casing l) is difiillwl slung: h hormonal{ions 1, the flsingcs sccurml ie Lhor by bolls Hero the sun on head llalso of rolnforcozl con srel'o as described in connoction Will Fig. 3but is divided along the hz'rizontnl plane I: and girovidcil withllui'zgs inch} logothcr by bolts j. in plnro ol' lho rod llnngo q andihe ring R of Fig. 3, {ho member n, prefornhly of cast, iron, isprovided. its inner Qllll l nking thc place. of ono of lhc rings R providing moans for nllnrhnicutof rsinlor W! rods r and at ihs olhcr end inthe b'lHIlH -i hcud H providing means for attachment roinforoing rods 0,and u hppcd Yllll'hlfi?! (it being provided for the *llor i.

In Fig. :1 construi'vtion L: urn involv ing the singlc piooo disrhsrgecnsing'l) similur to that described in FL 1. Two sui tiou bonds are horashown iliriilcii along Sz horizonlnl plane and soi'vurmi by bolts j inlhc rings ll. In the casing D may be pro vidwl the man hole ring 11, asof shoe; or rust rue-i :11 cast in the concrete (3, the rein forcingrods '1' at. this point being interrupted and connected to tho ring v.An airtightcover 1: is secured to the ring, I, the removal of the oovero unoovnring-ths opening through which a man may enter i t the casin Dfor the purposes of spection, cleaning, repair, etc. In Fig. 4'. as inFig. 4, the. gland or shilling box n may be divided along ahorizorunlplane and may have means for sbinwhment of tho reinforcingrods 0 as indicated in Fig. 5.

-In Fig. 6 a double suction pump is shown with both the suction hoodsand the casing D divided along the horizontal plane; th suction headparts being mist integral with the (using pails dcscribrd in connectionwith Fig. 4. In this case a ring memlior w, preforablv of cast metal,oust in th concrete C of the casing l) to form n priming connection,that is, a hole or connection through which liquid or water may be sunplied to fill the pump to prime is at shu'l ing.

in Fi n 7 is shown a vertical pum that a the shall, S vertical. Here thodischarge casing D of reinforced oonrri'lo ll nmy no made integral withtho coucrote base l" throu h which xtends the suction passage F. I lerothe hood H is secured by bolls to the upper ring member ll, while the]()\-'il scribed. In this case the member g hasthe tey'minal 3 33 5 23extending gh u a;

the ring member's R and receiving at their ends the nuts y. Thisconstruction is to be understood as an alternative for any or the InFig. 8 a horizontal pump is shown with a. se crate suction head H, madeof reinforce concrete, and divided along the horizontal plane t. In thiscase there is on the head H the 103st flange member 2- bolted to thering member R and providing s running {it with the impeller I.

It isito be understood that in place of the reinforcing rods and meansillustrated, any other reinforcing men ns may be employed such as sheetsor plates of iron or the like, which latter also assists in making theconcrete members WBJLBX tight.

The concrete parts, as pump casing and suction heads, etc, may be waterproofed by any suitable means, as by incorporating the some within thebody of the cast concrete, as when one or more layers of asphalted paperor fabric is employed; or by mixing with the concrete before casting anysuitable water proofing preparation; or by applying a wet r proofingpreparation to the concrete after casting.

What I claim is:

1. The combination with a. centrifugal pump casing of concretebr thelike, of an annular metallic member attached to said casing and formingthe inner boundary of saidcasing at the impeller bore thereof.

2. An involute pump casing of concrete or the like, and reinforcingmembers inthe concrete of said casing and conforming to,

the involute shape of said casing.

3. An involutc pump casing of concrete or the like, reinforcing membersin concrete of said casing and conforming to the involute shape of saidcasing, and reinforcing members'in' the concrete of said casingextending transversely thereof.

4.- A centrifugal pump casing of concrete or the like, said casinghaving a bore, and metallic members attached .to the concrete of saidcasing at its edges next to said bre,

5. A centrifugal pump casing of concrete or the like, said casing havinga bore, metallic members attached to the concrete of said casing at itsedges next to said bore, and reinforcing members in said concreteattached to said metallic members and extending transversely of saidcasing.

S. The combination with the casing of a centrifugal pump,'ef a metallicmember at the bore of said casing, a suction head of concrete ortliclike, smetallic connecting flange at the end of said suction head,and

means securing said metallic connecting flange to said metallic member.v

7. The combination with the cesingof a centrifugal pump of concrete orthe like, of a metallic member at the bore of: seid casing,"

a suction head of concrete orJthe like, a

metallic connecting flange atthe end of said suction head, and meanssecuring said metallic connecting flange to said metallic member. p 4

8. The combination with a centrifugalpump casing of concrete or thelike, metallic rings forming the ends of the casing section,

and a strut extending between said rings 9. The combination with acentrifugal pump casing of concrete or the like, metallic rings formingthe ends oi the casing section, and a strut extending between saidrings, said. strut constituting a guide vane.

10. The combination with a centrifugal pump casing of concrete or thelike, of an annular ring forming a. shoefor each inner edge of said.casing, and a plurnlit 'of struts disposed between said ringseta purzility of recurring points.

11. The combination in said suction-head to said shoe, anden impellerheaving a running fit with said con necting menus.

pum casing of concrete or'theflike, o e metalic shoe of channel or- Usection. for each inner edge of said casing, the'concrete of said casingextending into said shoes.

13. The combination wit-hide, centrifugal with e'centrifugal; pumpcasing of concrete or the like, of an 14. A centrifugal pump casing bfcrete or the like, said casing divided into sections, and cocperatingattaching ,tisnges for said sections, each flange attached-to theconcrete of its section. 4 e

15. The combination with acentrifugal pump casing, of a suction head ofconcrete or the like, said suction head divided into sections, said,section's having flanges for connecting said sections togetheneachflange connected with the concrete of its section, and means connectedwith the "concrete of the suction heed sections secured to said pumpcasing. i

16. The. combination with'e centrifugal pump casing of concrete or thelike, of a foundation cast; integral With n part of said amxed mysignature in the presence of th pump casing.

h d two subscribing witnesses. I 17. The combination with a suction ea Iof concrete or the like, of 'a shaft gland or HENRY DE HUFF' 5 stufiingbox having members attached to the Witnesses:

concrete of said head.

NELLIE EVANS, In testimony whereof I have hereunto ELEANOR T.'MOCALL.

